"Blink", which blinks an LED, is the traditional first program in Arduino.Wiring:

WIRING:Ground on Arduino to Ground Bus on Breadboard( black)Insert 3 LEDs- -(short) ends into ground bus, long ends to resistorsInsert three 220 ohm resistors across "valley". The resistors serve to limit the current so as not to burn out the LEDs.Insert 3 wires between Pins 12,10, and 8 on Arduino to resistors.